N.Y. Educ. Law § 518

§ 518. Pension reserve fund. The pension reserve fund shall be the\nfund from which shall be paid the pensions to new entrants on account of\nwhich reserves shall be transferred from the pension accumulation fund.\nShould any disability pension payable from said fund be canceled, the\npension reserve thereon shall thereupon be transferred from the pension\nreserve fund to the pension accumulation fund. Should the pension of a\ndisability beneficiary be reduced as a result of an increase in his\nearning capacity, the amount of the annual reduction in his pension\nshall be paid annually into the pension accumulation fund during the\nperiod of such reduction.\n